1.

Fill in the blanks : a.In the …1.. The vascular bundles have no cambium present in them .Hence since they do not form secondary tissue they are referered to as ..2.. b.In…3..stems cambium is present betweeen phloem and xylem such vasuclar bundles becuse of the presence of cambium possess the ability to form secondasry xylem and [hloem tissues and hence called ...4.. vascular bundlesA. 1-monocotyledons, 3-dicotyledons, 2-open, 4-c closedB. 3-monocotyledons, 1-dicotyledons,2-open 4-closedC. 1-monocotyledons, 3-dicotyledons, 4-open, 2-c closedD. 3-monocotyledons, 1-dicotyledons, 4-open, 2-c closed

Answer» Correct Answer - C
In the monocotyledons , the vascualr buyndles have no cambium present in them .Hence since they do not form secondary tisue they are refferred to as closed
In dicotyledons stems, cambium in present between phloem and xylem. Such vascualr bundles because of the presence of cambium lossess the ability to formf secondary xylem and phloem tissues and hence called open vascular bundles.


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